In Ken Kesey's novel "Sometimes a Great Notion," the line about someone having "eyes like he's been to the edge and looked over" suggests a deep, profound experience that goes beyond ordinary understanding. It implies that the character has faced significant challenges or existential questions, possibly dealing with themes of life, death, and resilience. This portrayal evokes a sense of wisdom acquired through hardship, highlighting the character's complex emotional state.

This imagery captivates readers by evoking curiosity about the character's past. It indicates a journey that has shaped their worldview, reflecting an inner strength that comes from grappling with the darker aspects of life. Such eyes reveal not just pain, but also a certain clarity and awareness, marking the character as someone who's encountered the depths of existence and returned with a unique perspective.